8 instances from 2 years 2020 - 3 instances Jan 20 Feb Mar Apr May Jun Jul 1 Aug Sep Oct Nov 20 Dec 2018 - 5 instances Jan Feb Mar Apr May Jun 21 3 Jun 21, 2018 3 instances 04:27:42 13:22:03 18:09:12 22 Jul 6 Aug Sep Oct Nov Dec